Universal socket tools are durable, and made from heat-treated chrome vanadium steel for heavy torque resistance. They're compatible with impact guns, with quick and secure size changes. The sandblasted finish enhances durability, and spring-loaded extension ball bearings prevent socket fall-offs. The 1/4 hex shank fits all quick change chucks and standard drill chucks, making them ideal for various applications in home, workshop, or construction settings. 8pcs Socket Wrench Adapters: Chrome vanadium steel, is sturdy, smooth, with high strength Spring-loaded ball bearing on the head, hold socket adapter securely Fits power tools, drivers, hand wrenches, and screwdriver handle tools 1/4" 3/8" 1/2" hex shank fits quick change chucks and standard drill chucks Suitable for auto parts repairs, household maintenance, and machinery Package Includes: 8 x Power Bit Extensions